CN201955327U - Fluorescent magnetic powder defect detector for annular parts - Google Patents
Fluorescent magnetic powder defect detector for annular parts Download PDFInfo
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- CN201955327U CN201955327U CN2010206553763U CN201020655376U CN201955327U CN 201955327 U CN201955327 U CN 201955327U CN 2010206553763 U CN2010206553763 U CN 2010206553763U CN 201020655376 U CN201020655376 U CN 201020655376U CN 201955327 U CN201955327 U CN 201955327U
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- magnetic powder
- defect detector
- parts
- annular parts
- fluorescent magnetic
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Abstract
The utility model discloses a fluorescent magnetic powder defect detector for annular parts, and belongs to the technical field of physics. The defect detector is used for detecting the defects of the annular parts with high axial and radial ratio, and overcomes the defect that the conventional annular parts cannot be detected by using a fluorescent magnetic powder method. The defect detector comprises a frame, a magnetic powder suspension spraying device arranged on the frame, an ultraviolet light source and an electrode. The defect detector has the improvement that: the defect detector is provided with a magnetizer, wherein the magnetizer consists of a peripheral magnetizing current carrier core shaft, a longitudinal magnetic induction coil sleeved on the carrier core shaft and an annular part suspension seat fixed on the upper side of an outer cover of the magnetic induction coil. The defect detector has the advantages that: the conventional two-dimensional fluorescent magnetic powder defect detector is changed to apply magnetism through the magnetizer, non-clamping suspended two-dimensional magnetization of the detected annular parts is realized, the clamping electrode is not limited in short distance, the spatial magnetic field occupied by the parts is uniform and complete, the surfaces of the parts are not shaded, the magnetic powder can cover all the surfaces of the parts, and the fluorescent magnetic powder defect detection of the annular parts is simple, convenient and feasible.
Description
Technical field
The invention belongs to the physical technique field, be specifically related to MPI fluorescent magnetic particles mechanical component defect-detecting equipment.
Background technology
By the magnetic powder fluid spray body, the ultraviolet irradiation lamp, magnetizing coil, the electrode main shaft, initial and end main shaft frame and above each several part is assembled into the MPI fluorescent magnetic particles two dimension defectoscope that whole frame and outer cover are formed is the magnetisable mechanical component defect-detecting equipment of current more use.What adopt based on this defectoscope is the mode of magnetization that part energising circumferential magnetization and coil impose longitudinal magnetization, and the ring-shaped work pieces that causing can't be little to axial dimensions such as gear rings, radial dimension is bigger detects.Reason is when selecting axial clamp to hold part, not only exist and account for the contact of part larger area end face and on electrode, can't adhere to magnetic, and in impose vertically (axially) magnetization with coil, diameter of part and length are than under the big situation, the demagnetizing field effect is obvious, does not reach needed magnetization effect.Simultaneously, part is inserted in the narrow and small electrode gap also be awkward.Select radially clamping, part and electrode contact surface are little, electric current and mechanical force easy damaged part and battery lead plate.Thin, narrow part is yielding.
Summary of the invention
The purpose of this invention is to provide a kind of ring-shaped work pieces fluorescent magnetic particle inspection machine, be used for axially with radially than the flaw detection of big ring-shaped work pieces, overcome the deficiency that ring-shaped work pieces in the past can not use the flaw detection of MPI fluorescent magnetic particles method.
MPI fluorescent magnetic particles ring-shaped work pieces defectoscope of the present invention comprises frame, rack-mounted magnetic powder fluid flusher, ultraviolet source, electrode, magnetizing coil, the improvement of being done is: by by circumferential magnetization electrical current carriers mandrel, be enclosed within vertical sense magnetic coil on the carrier mandrel, be fixed on the magnetizing apparatus that the ring-shaped work pieces hangoff receptacle of sense magnetic coil outer cover upside is formed.More than be basic scheme of the present invention.
For optimizing structure, the conductor mandrel is a copper tube in the magnetizing apparatus, dress soft magnetic material plug in the copper tube.
The principle of work of magnetizing apparatus is among the present invention: the magnetic field that the electric current by mandrel produces imposes circumferential magnetization to the ring-shaped work pieces that hangs on the supporting base, the alternating magnetic field that hot-wire coil the produces ring current of on ring-shaped work pieces, inducting, the magnetizing field that this ring current produces around the part ring body imposes longitudinal magnetization to part, vertically, the synthetic vector of circumferential two quadrature alternating magnetizations press the 50HZ rotation, realization is to the comprehensive magnetization of ring-shaped work pieces.
Good effect of the present invention is: the defectoscope that uses magnetizing assembly of the present invention, the existing two-dimensional fluorescent magnetic particle inspection machine changed into by magnetizing apparatus execute magnetic, realized the magnetization of the non-clamping suspension of tested ring-shaped work pieces two dimension, make within holding electrode is not limited in closely, the shared space magnetic field of part is evenly complete, piece surface does not have and blocks, and magnetic can the cap piece all surfaces, makes the ring-shaped work pieces fluorescent magnetic particle flaw detection easy, feasible.
Description of drawings
Fig. 1 is the one-piece construction synoptic diagram of defectoscope of the present invention.
Fig. 2 is a defectoscope magnetizing apparatus structural drawing of the present invention.
Embodiment
Consult Fig. 2, the copper tube 1-1 that selects respective length is as circumferential magnetization electrical current carriers mandrel, the inductive rod 1-2 that silicon steel sheet builds up in the copper tube 1-1, copper tube 1-1 overcoat coil former 1-3, coil former 1-3 Shangrao coil 1-4, coil 1-4 adorns insulation cover 1-5 outward, ring-shaped work pieces hangoff receptacle 1-6 on the upside of insulation cover 1-5 is fixing, more than promptly form magnetizing apparatus among the present invention.
Consult Fig. 1, the fixed mount 2 that above-mentioned magnetizing apparatus 1 usefulness is connected with electrode is installed on the fluorescent magnetic particle inspection machine of the existing float electrode frame 9 that comprises frame 3, lower box 4, upper box 5, magnetic suspending liquid storage bin 6, magnetic suspending liquid flusher 7, large tracts of land uviol lamp 8, clamping magnetizing apparatus, promptly finishes ring-shaped work pieces fluorescent magnetic particle inspection machine of the present invention.
Claims (2)
1. ring-shaped work pieces fluorescent magnetic particle inspection machine, comprise frame, rack-mounted magnetic suspending liquid flusher, ultraviolet source, electrode is characterized in that: by by circumferential magnetization electrical current carriers mandrel, be enclosed within vertical sense magnetic coil on the carrier mandrel, be fixed on the magnetizing apparatus that the ring-shaped work pieces hangoff receptacle of sense magnetic coil outer cover upside is formed.
2. ring-shaped work pieces fluorescent magnetic particle inspection machine according to claim 1 is characterized in that: the conductor mandrel is a copper tube, dress soft magnetic material plug in the copper tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206553763U CN201955327U (en) | 2010-12-13 | 2010-12-13 | Fluorescent magnetic powder defect detector for annular parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206553763U CN201955327U (en) | 2010-12-13 | 2010-12-13 | Fluorescent magnetic powder defect detector for annular parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201955327U true CN201955327U (en) | 2011-08-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206553763U Expired - Fee Related CN201955327U (en) | 2010-12-13 | 2010-12-13 | Fluorescent magnetic powder defect detector for annular parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201955327U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458899A (en) * | 2014-12-15 | 2015-03-25 | 中国第一重型机械股份公司 | Magnetic powder detection device and detection method for large nut forgings |
| CN111505111A (en) * | 2020-04-30 | 2020-08-07 | 中国航发成都发动机有限公司 | Magnetic powder detection device and method for annular part |
-
2010
- 2010-12-13 CN CN2010206553763U patent/CN201955327U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458899A (en) * | 2014-12-15 | 2015-03-25 | 中国第一重型机械股份公司 | Magnetic powder detection device and detection method for large nut forgings |
| CN111505111A (en) * | 2020-04-30 | 2020-08-07 | 中国航发成都发动机有限公司 | Magnetic powder detection device and method for annular part |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20131213 |